package com.greensock.easing {
	public class Circ {
		public static function easeIn(t : Number, b : Number, c : Number, d : Number) : Number {
			return -c * (Math.sqrt(1 - (t /= d) * t) - 1) + b;
		}

		public static function easeOut(t : Number, b : Number, c : Number, d : Number) : Number {
			return c * Math.sqrt(1 - (t = t / d - 1) * t) + b;
		}

		public static function easeInOut(t : Number, b : Number, c : Number, d : Number) : Number {
			if ((t /= d * 0.5) < 1) return -c * 0.5 * (Math.sqrt(1 - t * t) - 1) + b;
			return c * 0.5 * (Math.sqrt(1 - (t -= 2) * t) + 1) + b;
		}
	}
}